Device for sealing bottles.



PATENTED JUNE 2, 1908.

P. DINGMAN. DEVICE FOR SEALING BOTTLES.

APPLICATION FILED JAN.2'7, 1908. I

' vwzulfpz @ZM 40W q Vitnmow UNITED sTAir s nrENT FRANK DIN GMAN, OFBALTIMORE, MARYLAND, ASSIGNOR OF ONE-HALF TO ALBERT E. DON- ALDSON, OFBALTIMORE, MARYLAND.

DEVICE FOR SEALING BOTTLES.

Application filed January 27, 1908.

T 0 all whom it may concern.

Be it known that I, FRANK DINGMAN, a citizen of the United States,residing at Baltimore, in the State; of Maryland, have invented certainnew and useful Im rovements in Devices for Sealing Bottles, of which thefollowing is a specification.

This invention relates to improvements in devices for sealing bottlesand has particular reference to that class of bottle seals in which asheet-metal cap containing a sealing medium is secured over the mouth ofa bottle so as to resist internal pressure.

The present invention has particular reference to an improvedconstruction and arrangement of sealing devices in combination with acap to receive said devices,said cap having pendent devices for engaginga looking shoulder on the bottle neck.

One object of the present invention is to provide an improvedconstruction of sealing members on the interior of the ca which will beless expensive than the wellnown cork disks heretofore employed andwhich will enable a more perfect seal to be effected than heretofore.

Another object of the invention is to provide an improved constructionof sealing device by means of which the seal may be made at a point inthe bottle mouth which is protected from damage and thus more apt to beperfect for sealing purposes. T1

Another object of the invention is to provide an improved construction,combination and arrangement of cap and disks whereby the sealing diskmay be seated without liability of stretching and breaking at thesealing oint.

T e drawing illustrates the invention in which,

Figure 1, shows a side elevation, the parts .of which when assembledform a complete cap. Fig. 2, illustrates a sectional view of the cap.Fig. 3, shows a section of the cap and neck about to be broughttogether. Fig. 4, illustrates the first step in thesealing operation,and Fig. 5, shows a sectional elevation of a bottle neck to which theimproved sealing device has been attached.

Referring to the drawing by numerals, 1, designates a sheet-metal capwhich, in the present instance has a flat top surface, 2, and a pendentengaging device at the marginal edge of said top surface which engagingdevice in the present instance, has the form of a Specification ofLetters Patent.

Patented June 2, 1908.

Serial No. 412,786.

circumferential flange, 3. In the form of cap shown, the flange thereofis rovided with a plurality of notches, 4, whic are formed at the loweredge so as to produce a plurality of segmental members, 5, havingoutwardly projecting flanges, 6. Above the outwardlyprojecting flanges,6, the segmental members are provided with an inwardly-projectingshoulder, 7, which serve a useful function in connection with theimproved sealing devices on the interior of the cap.

On the interior of the ca and immediately beneath the top surfacethereof I provide a concavo-conveX disk, 8, the concave-side of the diskbeing u permost and the marginal edges, 9, thereo having positionadjacent and confronting the pendent engaging flange, 3, of the cap andlying in a horizontal plane above the central depressed portion, 10, ofsaid disk. The concavo-convex disk, 8, is formed from a metallic plate.

A flat sealing disk, 11, of some suitable flexible material such aspaper or fabric is preferably treated so as to form a coating on itsflat surface and this sealing disk has position in the cap beneath thecentral depressed portion, 10, of the metal disk, 8, and the marginaledges, 12, of this sealing disk also confront the pendent engagingflange, 3, of the cap and are sustained by the inwardlyprojectingshoulder, 7, on the engaging flange. It will thus be seen that thediameter of the sealing disk is greater than the diameter of the loweropen-end of the ca below the shoulder, 7, and by reason 0 this variationin the diameters the sealing disk and the concavo-convex disk are heldin place in the cap.

It will be apparent that the cap as a complete article ready for saleand use has a flat top witha pendent engaging device at its marginaledge and is provided with a flat sealing disk, anda concavo-convex diskbetween the flat sealing disk and the bottom side of the flat top.

In a pl ing the improved cap to a bottleneck t e atter, shown in Fig. 3and designated, 13, is rovided with the usual annular locking shou der,14, and annular lip, 15, at the bottle mouth.

One object of the present invention is to provide a construction ofsealing device that will operate to effect a seal at and around the lip,15, for the reason that at this point the neck is protected and is morethan likely free of chips such as are often found on the ex i I teriorsurface of the bottle mouth.

- the ca and sealing disk;

My arrangement of a flat sealing disk and a metallic disk with a deressed central portion above the sealing dlsk, produces a constructionthat is exceedingly effective in the operation of applying the caps to abottle neck. For examp e, when the cap and bottle neck are broughttogether as shown in Fig. 3, the central portion of the sealing disk,11, is backed up b the depressed central portion, 10, of the dis 8, wh'e the marginal edge, 12, of said sealing disk is unsupported againstupward pressure so that after the first contact between the bottle mouthand sealing disk any further movement to bring the cap and bottletogether will cause the central portion of the sealing disk, 1 l, to beforced down inside of the mouth of the bottle and because of itsflexible character, seat close against the li ,l5,as showninFigJl.During thisportion o the sealin operation the marginal edge, 12, of thesea ing disk may draw away from the pendent engaging flange, 3, ofthecap and thus prevent a stretchin of the sealing disk as would occur ifthe sai marginal edge were held, and thus all liability of stretchingand rupturing the sealing disk is avoided. After the sealing disk hasbeen firmly seated around the lip, 15, as shown in Fig. 4, the furthermovement to bring the cap and bottle together will cause the margins ofthe sealin dis 11, and metallic disk, 8, to be turne down and over themouth of the bottle, as shown in Fig. 5.

From the foregoing explanation it will be seen that advantageous resultsare produced in the combination of a cap with a normally flat sealingdisk on the inside thereof, and a metallic disk havin a depressedcentral portion which latter disk is interposed between vice constructedin accordance with this invention enables the use of a sealing disk ofan exceedingly cheap material,-the two disks together being produced ata much less expense than a dork disk.

Itis to be understood that the form of the inclosin cap may be variedand that the cap see aw;-

illustrated in Letters Patent of thel United States Number 853,775granted to me on the 14th day of May 1907.

Having thus described my,invention what I claim and desire to secure byLetters'Patent 1s,

v 1. A metallic bottle-sealing ca havin a continuous top surface and, apen ent bott eneck enga ing device extending continuously downward yfrom the marginal edge of the top surface of the cap, a metallic platein said cap,said plate being concavo-convex from its margina edge at oneside to the marginal edge at its diametrically-opposite side, and a flatsealin disk also in the cap beneath the metallic ate and having itsmarginal edge confronting the pendent bottle-neck engag- 111g device. 1

2. The combination .with a sheet-metal cap havin a top and a pendentbottle-neck engaging device at the edge of said top, of a flat sealindisk in said cap and a second disk interpose between the cap-top and theflat sealing disk,said second disk having a deressed portion whichconfronts the central at portion of the sealing disk.

'3. The combination with a sheet-metal cap ,havin a top and a pendentbottle-neck engaging evice at the edge of said top, of a flat sealingdisk in said ca and having its marginal ed e unsup orte against upwardpressure an a meta '0 disk inter osed between the flat disk; and cap-toan having a depressed centrali ortion an the marginal edge of said metaliodisk being normallymember, and a concavo-convex metal portionencircled by the flange-member and havmg position above the Hat sealingdisk.

11 testimony whereof I afiix my signature in presence of two witnesses.

I FRANK DINGMAN. Witnesses:

CHARLES B. MANN, Jr., Jon-N W. Hnwns.

